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Forging apparatus

a forging apparatus and shaped technology, applied in forging presses, forging/pressing/hammering apparatuses, forging/hammering/pressing machines, etc., can solve problems such as exacerbated problems, further damage to other components of forging apparatus, and easy breakage, so as to improve the tolerance of misalignment and improve reliability.

Active Publication Date: 2014-06-19
ROLLS ROYCE PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a forging apparatus and method that can improve the reliability of forging processes. This means that the apparatus and method can better tolerate misalignment between the hammer and the billet during forging. In simpler terms, this means that the forging tool can be more robust and capable of withstanding misalignment.

Problems solved by technology

This problem may be exacerbated by the requirement to use hardened material for the punch 140, because this hardened material may also be brittle and thus susceptible to breakage.
The damaged punch may cause further damage to other components of the forging apparatus 100.
This undesirable affect may be particularly significant if the forging process is automated, because the whole process would need to be interrupted to repair the damage.

Method used

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  • Forging apparatus
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Embodiment Construction

[0033]The operation of an example of a forging apparatus 100 has been described above in relation to FIG. 1. As explained above, a problem of the striking portion 142 breaking off from the rest of the punch 140 exists with the FIG. 1 arrangement. This may occur if, for example, there is variation in the position of the dies 110, 120, and thus the billet 150, between forging operations.

[0034]FIG. 2 shows a forging apparatus 200 according to an aspect of the invention. The forging apparatus 200 has an upper press 210 and a lower press 220. The upper press 210 and the lower press 220 are shown spaced apart, but during use they move together, such that the upper press 210 moves in the direction of arrow B relative to the lower press 220, thereby receiving (which, optionally, may include clamping, or holding) a billet 250.

[0035]The forging apparatus 200 also comprises a ram 240 and a separate punch 260. The punch 260 is held in a punch holder 270, which may be defined by the upper and lo...

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Abstract

A forging apparatus and method is disclosed in which a punch 260 is held in a press 210, 220 and propelled towards a billet 250 by a ram 240. The ram 240 is separate from the punch 260. Thus, any axial misalignment between the ram 240 and the press 210, 220 in which the billet is held, for example due to the extremely high loads involved, has no affect on the direction and position of the impact force the punch 260 transmits to the billet 250. This helps to prevent unwanted forces and bending moments in the punch 260, thereby preventing breakage of the punch 260.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is based upon and claims the benefit of priority from British Patent Application Number 1222904.3 filed 19 Dec. 2012, the entire contents of which are incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an apparatus and method for forging a shaped component, in particular a shaped component of a gas turbine engine.[0004]Forging is used in a variety of metalworking operations in order to produce shaped components. Typically, a hammer or ram is used to provide a compressive force to a billet of metal (which may be heated) in order to deform the metal into the shape of a die.[0005]2. Description of the Related Art[0006]Various different types of forging process have been developed to suit the desired properties of the shaped component, for example in terms of size, shape, material properties and required throughput.[0007]In one particular type of forging,...

Claims

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Application Information

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IPC IPC(8): B21J9/02
CPCB21J5/025B21J9/027B21K3/04B21J5/02B21J9/02B21J13/025
Inventor MCBAIN, JOHNGIBLIN, PAUL
Owner ROLLS ROYCE PLC